Scientific novelty of researches consists in development of imitating model for the Laser Distance Meter which adequately describes process of signal formation. The practical importance of researches will be that the model allows to optimize parameters and structure of blocks on the basis of the account of a degree of influence of various factors on results of distance measurements. Besides the given model can represent itself as a ready subsystem by development of multipurpose laser devices of various purpose with use of program system MATLAB.